CN115210072B - Laminated glass with connector, method for producing same and use thereof - Google Patents

Laminated glass with connector, method for producing same and use thereof Download PDF

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Publication number
CN115210072B
CN115210072B CN202180018882.2A CN202180018882A CN115210072B CN 115210072 B CN115210072 B CN 115210072B CN 202180018882 A CN202180018882 A CN 202180018882A CN 115210072 B CN115210072 B CN 115210072B
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Prior art keywords
glass sheet
glass
laminated glass
connector
thickness
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CN202180018882.2A
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Chinese (zh)
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CN115210072A (en
Inventor
M·A·张伯伦
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Pilkington Group Ltd
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Pilkington Group Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
    • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10376—Laminated safety glass or glazing containing metal wires
    • B32B17/10385—Laminated safety glass or glazing containing metal wires for ohmic resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/34—Inserts
    • B32B2305/345—Heating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/208—Touch screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2479/00—Furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/12—Ships
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft

Abstract

The present invention relates to a laminated glass (10) comprising: the first and second glass sheets (1, 2) and the ply of interlayer material (3) arranged therebetween, the conductive tape (4) arranged on the ply of interlayer material (3), the connector (5) arranged at the edge of the second glass sheet (2), the ceramic ink layer (6) on the surface (S4) of the second glass sheet (2) not facing the ply of interlayer material (3) and partly shielding the conductive tape (4), the gap (7) in the ceramic ink layer (6) being configured such that the conductive tape (4) is in contact with the connector (5) in the gap (7). The invention also relates to a method for producing said laminated glass and to the use thereof.

Description

Laminated glass with connector, method for producing same and use thereof
Technical Field
The present invention relates to laminated glass with connectors, a method of manufacturing such laminated glass and the use of such laminated glass, for example in windows.
Background
Laminated glass having an electrical connector between two plies of glass material is well known. The vehicle window may include a connector in electrical contact with a busbar of the heating circuit or a component of the antenna. The connector may be located near an edge of the laminated glass to connect to an external circuit. A ceramic ink layer, known as a masking tape, may be provided at the edge region of the laminated glass to mask the visual image of the component at or near the edge.
EP1466877A1 (Noguchi) discloses a windshield laminate comprising two glass sheets bonded to each other with a thermoplastic resin film. A bus bar for supplying power to the transparent conductive film is formed on the surface 3 (numbered from the outside of the laminated glass). A ceramic printing in the form of a frame is on the surface 2 and covers the bus bars and the feeding portions of the bus bars connected to the feeder.
US7520416B2 (crumbich) discloses a laminated glass comprising two glass sheets and an interlayer disposed between the two glass sheets. The masking tape is provided by forming a printed ceramic ink layer of opaque coating on the surface 4 having the cut where the glass sheet surface is exposed. The electrical conductors are printed in the kerfs exposing the base glass. A welded connection is formed on the surface 4.
Disclosure of Invention
It is an object of the present invention to provide a laminated glass comprising an electrical connector having a lighter weight and an improved strength. Another object is to provide a method of manufacturing the laminated glass which improves yield by avoiding breakage of thin layers of glass material. Another object is to use the laminated glass in windows in industry standards.
In a first aspect, the present invention provides a laminated glass comprising the features of claim 1.
The present invention provides a laminated glass comprising: a first glass sheet and a second glass sheet and at least one ply of interlayer material disposed therebetween; a conductive strip disposed on the ply of interlayer material; connectors disposed at edges of the second glass sheet for connection to external circuitry; a ceramic ink layer on a surface of the second glass sheet not facing the ply of interlayer material and partially masking the conductive tape; and a gap in the ceramic ink layer configured such that the conductive strip contacts the connector in the gap.
The present invention is advantageous because laminated glass having connectors and gaps in the ceramic ink layer (configured such that the conductive strips contact the connectors in the gaps) has increased strength compared to prior art without gaps. The gap is the area without the ceramic ink layer.
Surprisingly, the inventors have found that the gaps in the ceramic ink layer on the glass sheet result in a compressive stress in the glass sheet surface 4 that is greater than a tensile stress in the glass sheet surface 4 due to the contact or overlap of the conductive strips with the connector. Preferably, the conductive strip overlaps the connector.
In US7520416B2 no gap in the ceramic printing is disclosed, wherein a cut is provided in the conductive tape to provide a viewing window for visual inspection of the solder layer.
The laminated glass has improved strength due to the provision of the gap in the ceramic ink layer such that the conductive strip is in contact with the connector in the gap and passes the temperature cycling test for the vehicle windshield.
In a preferred embodiment, the increase in strength is sufficient to allow for the use of thinner glass, thereby providing a lightweight product suitable for use as a vehicle windshield. Lightweight vehicle components are advantageous for fuel efficiency of the vehicle.
Preferably, the thickness of the first glass sheet or the second glass sheet is less than or equal to 2mm, more preferably less than or equal to 1.8mm, more preferably less than or equal to 1.4mm, more preferably less than or equal to 1.0mm; most preferably less than or equal to 0.7mm.
Preferably, the thickness of the first glass sheet is greater than the thickness of the second glass sheet.
Preferably, the outer glass sheet has a thickness of 1.8mm and the inner glass sheet has a thickness of 1.4mm; more preferably, the outer glass sheet has a thickness of 2.1mm and the inner glass sheet has a thickness of 1.0mm.
Preferably, the first glass sheet and the second glass sheet are soda lime glass and/or float glass.
Preferably, the second glass sheet is annealed, more preferably semi-tempered, to have a surface stress of 20MPa to 25 MPa; more preferably heat-strengthened to have a surface stress of 40MPa to 55 MPa; most preferably fully tempered to have a surface stress of 65MPa to 69 MPa.
Preferably, the ply of interlayer material is a polymer, such as a thermoplastic resin, more preferably polyvinyl butyral (PVB). Preferably, the thickness of the ply of interlayer material is less than or equal to 0.76mm. The ply of interlayer material may comprise two plies of interlayer material, for example a pair of PVB plies having a thickness of 0.76mm and 0.38mm for acoustic performance, or 0.38mm and 0.38mm, wherein one ply has an infrared reflective (IRR) coating; or may comprise three plies of interlayer material, wherein the interlayer may comprise polyethylene terephthalate (PET) having a thickness of 0.1mm and having a coating for solar control properties.
Preferably, the gap extends from the edge of the second glass sheet towards the centre of the second glass sheet, preferably at least 22mm, more preferably at least 28mm.
Preferably, the gap extends parallel to the edge of the second glass sheet, preferably at least 32mm, more preferably at least 38mm.
Preferably, the second ceramic ink layer is on the surface 2 of the laminated glass.
Preferably, the ceramic ink layer comprises a frit and a pigment, preferably the ceramic tie layer is opaque, more preferably black or opaque. Preferably, the ceramic ink layer is printed, more preferably screen printed.
Preferably, the conductive strip is metallic, preferably copper, such as tin-plated copper, preferably 100 μm or less in thickness, more preferably 50 μm or less in thickness.
Preferably, the connector comprises a conductor and an insulating film at least partially covering the conductor, preferably the connector is a flat cable, more preferably the conductor is free of an insulating film where the conductive strip is in contact with the connector.
Preferably, the connector has a conductor thickness of 100 μm or less, more preferably 80 μm or less.
Preferably, the connector has an insulating film thickness of 50 μm or less, more preferably 30 μm or less.
Preferably, the connector is bonded to the second glass sheet by an adhesive film; preferably, the thickness of the adhesive film is 130 μm or less, more preferably 100 μm or less.
In a second aspect, the present invention provides a method of manufacturing laminated glass comprising the steps of claim 13.
The present invention provides a method of manufacturing laminated glass, comprising the steps of: providing a first glass sheet and a second glass sheet with a ply of interlayer material disposed therebetween; disposing a conductive ribbon on the ply of interlayer material or on the second glass sheet; laying out connectors at the edge of the second glass sheet for connection to external circuitry; depositing a ceramic ink layer on a surface of the second glass sheet not facing the ply of interlayer material and partially masking the conductive strip; and configuring a gap in the ceramic ink layer such that the conductive strip contacts the connector in the gap.
Preferably, the connector (5) is arranged on the ply of interlayer material (3).
Preferably, the conductive strip (4) is configured to overlap the connector (5).
In one embodiment, the ceramic ink layer may be pre-fired, and/or the second ceramic ink layer may be pre-fired.
In a third aspect, the invention provides the use of laminated glass as claimed in claim 15. The invention can be used for windows of buildings, street furniture, touch screens, doors of white goods (white goods) or windows of land, sea and air vehicles. Preferably, the invention can be used as a window for a motor vehicle, i.e. a windscreen, a rear window, a side window or a sunroof.
The invention will now be further disclosed by way of non-limiting drawings, non-limiting examples and comparative examples.
Drawings
FIG. 1 is an embodiment of the present invention having gaps in the ceramic ink layer.
Fig. 2 is a cross-sectional view of the embodiment of fig. 1.
Fig. 3 is an embodiment of the present invention having a second ceramic ink layer.
Fig. 4 is a cross-sectional view of the embodiment of fig. 3.
Fig. 5 is an embodiment of the present invention having wires as conductive elements.
Fig. 6 is a cross-sectional view of the embodiment of fig. 5.
Fig. 7 is an embodiment of the invention with a coating as the conductive element.
Fig. 8 is a cross-sectional view of the embodiment of fig. 7.
Fig. 9 is an embodiment of the invention showing details of the connector.
Fig. 10 is a cross-sectional view of the embodiment of fig. 9.
Fig. 11 is a cross-sectional view of another embodiment of fig. 7.
Detailed Description
Fig. 1 discloses a laminated glass (10) according to the invention comprising a first glass sheet (1) and a second glass sheet (2) bonded together by a ply of interlayer material (3).
The surface of the first glass sheet (1) not facing the ply of interlayer material (3) is the surface 1 (S1). The surface of the first glass sheet (1) facing the ply of interlayer material (3) is the surface 2 (S2). The surface of the second glass sheet (2) facing the ply of interlayer material (3) is the surface 3 (S3). The surface of the second glass sheet (2) not facing the ply of interlayer material (3) is a surface 4 (S4).
For example, the laminated glass (10) is a window, wherein the first glass sheet (1) is an outer glass sheet, the second glass sheet (2) is an inner glass sheet, and the surfaces (S1, S2, S3, S4) are numbered sequentially from the outside.
A conductive strip (4) is disposed on the ply (3) of interlayer material. Examples of conductive strips (4) include bus bars for distributing electrical energy to the heating elements, or connection pads for antennas or sensors. Two conductive strips (4) may be provided as positive and negative busbars of the heating element.
A connector (5) is arranged at the edge of the second glass sheet (2) for connection to an external circuit. Examples of the external circuit include a power supply for heating the laminated glass (10), an amplifier for receiving or transmitting a signal through an antenna on the laminated glass (10). The two connectors (5) are connected to the two conductive strips (4), respectively.
A ceramic ink layer (6) is deposited on the surface (S4) of the second glass sheet (2) not facing the ply of interlayer material (3), partially masking the conductive strip (4). The ceramic ink layer (6) may be a masking tape to mask a visual image of the component at or near the edge.
The gap (7) in the ceramic ink layer (6) is arranged and configured such that the conductive strip (4) is in contact with or overlaps the connector (5) in the gap (7). The gap (7) may be of any shape. Such as rectangular (as shown), triangular, or any other polygonal shape.
The two connectors (5) may be arranged in the same gap (7). For example, two connectors side-by-side on a laminated glass windshield enable two cables of a vehicle connector to be easily connected.
Fig. 2 is a cross-sectional view of the laminated glass (10) of fig. 1 taken along line A-A. The conductive strip (4) is on the ply (3) of interlayer material and overlaps the connector (5) in the gap (7).
Fig. 3 is an embodiment of the invention similar to fig. 1, further comprising a second ceramic ink layer (8). The second ceramic ink layer (8) is located on a second surface of the laminated glass (10).
Fig. 4 is a cross-sectional view of the embodiment of fig. 3. The second ceramic ink layer (8) obscures the visual image of the gap (7).
Fig. 5 is an embodiment of the invention similar to fig. 3, further comprising a heating element (9) extending between a first conductive strip (4) at the bottom edge of the laminated glass and a second conductive strip (14) at the top edge of the laminated glass. The heating element (9) comprises a plurality of heating wires. The first conductive strip (4) and the second conductive strip (14) each have two portions that are individually powered by two first connectors (5) and two second connectors (15), respectively, to allow independent switching of the two heating zones (left, right of the laminated glass). A second gap (17) in the ceramic ink layer (6) is provided in a region where the second conductive tape (14) overlaps the second connector (15).
Fig. 6 is a cross-sectional view of the embodiment of fig. 5, showing the heater wire sandwiched between the first conductive strip (4) and the third conductive strip (24) for better electrical contact. Preferably, a low melting solder strip (not shown) is arranged along the length of the first conductive strip (4) and/or the third conductive strip (24) such that the solder melts and flows around the heater wire during lamination. The first conductive strip (4) may be located on the ply of interlayer material (3) such that the connector (5) is closer to the surface (S3) of the second glass sheet (2).
Fig. 7 is an embodiment of the invention similar to fig. 5, except that the heating element (9) is a transparent conductive coating without a separate heating zone. Two connectors (5) are arranged side by side at the bottom edge of the laminated glass and are electrically isolated from each other by a deletion line (11) in the transparent conductive coating. One of the conductive strips (4) is provided with a conductive strip extension (12) arranged along the side and top edges of the laminated glass to form a second busbar for providing electrical energy to the heating element (9).
Fig. 8 is a cross-sectional view of the embodiment of fig. 7, showing that the absence of lines (11) in the transparent conductive coating results in the portion of the heating element (9) near the side edges being permanently unheated.
Fig. 9 is an embodiment of the invention similar to fig. 7, in which a connector (5) in the form of an insulated cable, for example a flat cable, is disclosed in more detail, comprising a conductor (51) at least partly insulated by an insulating film (52) and attached to a second glass sheet (2) by means of an adhesive film (53) acting as a water-repellent layer. The insulating film (52) typically includes two layers sandwiching the conductor (51), at least one layer having an epoxy adhesive to bond the two layers and form a seal at each side of the conductor (51). The epoxy adhesive may be thermally cured.
Fig. 10 is a cross-sectional view of the embodiment of fig. 9 taken along line X-X, showing that the connector (5) can be folded around the edge of the second glass sheet (2). The adhesive film (53) may be attached to the surface 4 in the gap (7) (S4).
Examples and comparative examples
The four examples and four comparative examples of the present invention have common features shown in table 1.
TABLE 1
Table 2 shows the differences between the four examples.
Example Connector position Thickness of conductive tape (mum)
1 Side edges 50
2 Side edges 100
3 Bottom edge 50
4 Bottom edge 100
TABLE 2
Five samples (20 samples in total) of each of the four examples were fabricated with a gap (7) in the region where the conductive tape (4) overlapped the connector (5), i.e., without the ceramic ink layer (6). All 20 samples were subjected to industry standard testing for thermal cycling. All 20 samples passed the test.
For each of the four examples, a comparative example having a ceramic ink layer (6) on the surface 4 (S4) in the region where the conductive tape (4) overlaps the connector (5) was produced. At least 50% of the comparative examples failed the thermal cycling test.
Reference numerals
1. 2-first glass sheet and second glass sheet
3-ply of interlayer material
4-conductive tape
5-connector
6-ceramic ink layer
7-gap
8-second ceramic ink layer
9-heating element
10-laminated glass
11-delegation line
12-conductive strap extension
14-second conductive strap
15-second connector
17-second gap
24-third conductive strap
31. 32, 33-first, second and third ply of interlayer material
51-conductor
52-insulating film
53-adhesive film
S1, S2, S3, S4-first, second, third, fourth surfaces

Claims (28)

1. A laminated glass (10) comprising:
-a first glass sheet (1) and a second glass sheet (2) and a ply of interlayer material (3) arranged between them;
-an electrically conductive strip (4) arranged on the ply of interlayer material (3);
-a connector (5) arranged at the edge of the second glass sheet (2);
-a ceramic ink layer (6) on the surface (S4) of the second glass sheet (2) not facing the ply of interlayer material (3) and partly masking the conductive strip (4);
-a gap (7) in the ceramic ink layer (6) configured such that the conductive strip (4) is in contact with the connector (5) in the gap (7).
2. Laminated glass (10) according to claim 1, characterized in that the conductive ribbon (4) overlaps the connector (5).
3. The laminated glass (10) according to claim 1, wherein the thickness of the first glass sheet (1) or the second glass sheet (2) is less than or equal to 2mm.
4. The laminated glass (10) according to claim 1, wherein the thickness of the first glass sheet (1) is greater than the thickness of the second glass sheet (2).
5. Laminated glass (10) according to claim 1, characterized in that the thickness of the ply of interlayer material (3) is less than or equal to 0.76mm.
6. Laminated glass (10) according to claim 1, characterized in that the gap (7) extends from the edge of the second glass sheet (2) towards the centre of the second glass sheet (2).
7. Laminated glass (10) according to claim 1, characterized in that the gap (7) extends parallel to the edge of the second glass sheet (2).
8. The laminated glass (10) according to claim 1, wherein the thickness of the conductive ribbon (4) is 100 μm or less.
9. Laminated glass (10) according to claim 1, characterized in that the connector (5) comprises a conductor (51) and an insulating film (52) at least partially covering the conductor (51).
10. Laminated glass (10) according to claim 9, characterized in that the conductor thickness of the connector (5) is 100 μm or less.
11. The laminated glass (10) according to claim 9, wherein the insulating film thickness of the connector (5) is 50 μm or less.
12. Laminated glass (10) according to claim 1, characterized in that the connector (5) is bonded to the second glass sheet (2) by means of an adhesive film (53).
13. The laminated glass (10) according to claim 1, wherein the thickness of the first glass sheet (1) or the second glass sheet (2) is less than or equal to 1.8mm.
14. The laminated glass (10) according to claim 1, wherein the thickness of the first glass sheet (1) or the second glass sheet (2) is less than or equal to 1.4mm.
15. The laminated glass (10) according to claim 1, wherein the thickness of the first glass sheet (1) or the second glass sheet (2) is less than or equal to 1.0mm.
16. The laminated glass (10) according to claim 1, wherein the thickness of the first glass sheet (1) or the second glass sheet (2) is less than or equal to 0.7mm.
17. Laminated glass (10) according to claim 1, characterized in that the gap (7) extends at least 22mm from the edge of the second glass sheet (2) towards the centre of the second glass sheet (2).
18. Laminated glass (10) according to claim 1, characterized in that the gap (7) extends at least 28mm from the edge of the second glass sheet (2) towards the centre of the second glass sheet (2).
19. Laminated glass (10) according to claim 1, characterized in that the gap (7) extends at least 32mm parallel to the edge of the second glass sheet (2).
20. Laminated glass (10) according to claim 1, characterized in that the gap (7) extends at least 38mm parallel to the edge of the second glass sheet (2).
21. The laminated glass (10) according to claim 1, wherein the thickness of the conductive ribbon (4) is 50 μm or less.
22. Laminated glass (10) according to claim 9, characterized in that the conductor thickness of the connector (5) is 80 μm or less.
23. The laminated glass (10) according to claim 9, wherein the insulating film thickness of the connector (5) is 30 μm or less.
24. The laminated glass (10) according to claim 12, wherein the thickness of the adhesive film (53) is 130 μm or less.
25. The laminated glass (10) according to claim 12, wherein the thickness of the adhesive film (53) is 100 μm or less.
26. Method for manufacturing a laminated glass (10) according to claim 1, by the steps of:
-providing a first glass sheet (1) and a second glass sheet (2) with a ply of interlayer material (3) provided therebetween;
-disposing a conductive strip (4) on the ply of interlayer material (3) or on the second glass sheet (2);
-arranging a connector (5) at the edge of the second glass sheet (2) for connection with an external circuit;
-depositing a ceramic ink layer (6) on the surface (S4) of the second glass sheet (2) not facing the ply of interlayer material (3) and partly masking the conductive strip (4); and
-configuring the gap (7) in the ceramic ink layer (6) such that the conductive strip (4) is in contact with the connector (5) in the gap (7).
27. Method for manufacturing laminated glass (10) according to claim 26, comprising the step of configuring the conductive ribbon (4) to overlap the connector (5).
28. Use of laminated glass (10) according to claim 1 for windows of buildings, touch screens, doors of white goods or windows of land, sea and air vehicles.
CN202180018882.2A 2020-03-06 2021-03-08 Laminated glass with connector, method for producing same and use thereof Active CN115210072B (en)

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GBGB2003291.8A GB202003291D0 (en) 2020-03-06 2020-03-06 Laminated glass having a connector, method of manufacturing the same and use of the same
GB2003291.8 2020-03-06
PCT/EP2021/055805 WO2021176103A1 (en) 2020-03-06 2021-03-08 Laminated glass having a connector, method of manufacturing the same and use of the same

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JP2023517038A (en) 2023-04-21
GB202003291D0 (en) 2020-04-22
CN115210072A (en) 2022-10-18
EP4114658B1 (en) 2024-03-06
US20230087157A1 (en) 2023-03-23
EP4114658A1 (en) 2023-01-11

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